Ignite UI API Reference

ig.OlapFlatDataSource

ig.OlapFlatDataSource_image
The igOlapFlatDataSource component enables multi-dimensional (OLAP-like) analysis to be performed on flat data collections. Given a data collection or an igDataSource™ instance and based on the user configuration, it extracts the necessary metadata in order to create dimensions of hierarchies and measures. The igOlapFlatDataSource component also performs calculations and aggregates data as requested using the component’s API directly or through one or more of the Ignite UI widgets capable of visualizing and interacting with OLAP data, e.g. igPivotView™ or igPivotGrid™.

Code Sample

 
<!doctype html>
<html>
<head>
    <!-- Infragistics Combined CSS -->
    <link href="css/themes/infragistics/infragistics.theme.css" rel="stylesheet" type="text/css" />
    <link href="css/structure/infragistics.css" rel="stylesheet" type="text/css" />
    <!-- jQuery Core -->
    <script src="js/jquery.js" type="text/javascript"></script>
    <!-- jQuery UI -->
    <script src="js/jquery-ui.js" type="text/javascript"></script>
    <!-- Infragistics Combined Scripts -->
    <script src="js/infragistics.core.js" type="text/javascript"></script>
    <script src="js/infragistics.lob.js" type="text/javascript"></script>
    <script type="text/javascript">
        var data =
                [{ "ProductCategory": "Clothing", "UnitPrice": 12.81, "SellerName": "Stanley Brooker", "Country": "Bulgaria", "City": "Plovdiv", "Date": "01/01/2012", "UnitsSold": 282 },
                { "ProductCategory": "Clothing", "UnitPrice": 49.57, "SellerName": "Elisa Longbottom", "Country": "US", "City": "New York", "Date": "01/05/2013", "UnitsSold": 296 },
                { "ProductCategory": "Bikes", "UnitPrice": 3.56, "SellerName": "Lydia Burson", "Country": "Uruguay", "City": "Ciudad de la Costa", "Date": "01/06/2011", "UnitsSold": 68 },
                { "ProductCategory": "Accessories", "UnitPrice": 85.58, "SellerName": "David Haley", "Country": "UK", "City": "London", "Date": "04/07/2012", "UnitsSold": 293 },
                { "ProductCategory": "Components", "UnitPrice": 18.13, "SellerName": "John Smith", "Country": "Japan", "City": "Yokohama", "Date": "12/08/2012", "UnitsSold": 240 },
                { "ProductCategory": "Clothing", "UnitPrice": 68.33, "SellerName": "Larry Lieb", "Country": "Uruguay", "City": "Ciudad de la Costa", "Date": "05/12/2011", "UnitsSold": 456 },
                { "ProductCategory": "Components", "UnitPrice": 16.05, "SellerName": "Walter Pang", "Country": "Bulgaria", "City": "Sofia", "Date": "02/19/2013", "UnitsSold": 492 }];

        $(function () {
            // create the OlapFlatDataSource instance
            var dataSource = new $.ig.OlapFlatDataSource({
                dataSource: data,
                metadata: {
                    cube: {
                        name: "Sales",
                        caption: "Sales",
                        measuresDimension: {
                            caption: "Measures",
                            measures: [ //for each measure, name and aggregator are required
                                {
                                    caption: "Units Sold", name: "UnitsSold",
                                    // returns a function that will be used as sum aggregatro on the 'UnitsSold property' of the data objects
                                    aggregator: $.ig.OlapUtilities.prototype.sumAggregator('UnitsSold')
                                }]
                        },
                        dimensions: [ // for each dimension name and hierarchies are required
                            {
                                caption: "Seller", name: "Seller", hierarchies: [{
                                    caption: "Seller", name: "Seller", levels: [
                                        {
                                            name: "AllSellers", caption: "All Sellers",
                                            memberProvider: function (item) { return "All Sellers"; }
                                        },
                                        {
                                            name: "SellerName", caption: "Seller",
                                            memberProvider: function (item) { return item.SellerName; }
                                        }]
                                }]
                            },
                            {
                                caption: "Date", name: "Date", /*displayFolder: "Folder1\\Folder2",*/ hierarchies: [
                                    $.ig.OlapUtilities.prototype.getDateHierarchy(
                                        "Date", // the source property name
                                        ["year", "quarter", "month", "date"], // the date parts for which levels will be generated (optional)
                                        "Dates", // The name for the hierarchy (optional)
                                        "Date", // The caption for the hierarchy (optional)
                                        ["Year", "Quarter", "Month", "Day"], // the captions for the levels (optional)
                                        "All Periods") // the root level caption (optional)
                                ]
                            }
                        ]
                    }
                },
                // Preload hiearhies for the rows, columns, filters and measures
                rows: "[Date].[Dates]",
                columns: "[Seller].[Seller]",
                measures: "[Measures].[UnitsSold]"

            });

            $('#pivotView').igPivotView({
                dataSource: dataSource
            });
        });
    </script>
</head>
<body>
    <div id="pivotView"></div>
</body>
</html>

Related Samples

Related Topics

Dependencies

jquery-1.4.4.js
infragistics.util.js

  • options

    Type:
    object
    Default:
    {}

    A javascript object containing the data souce configuration options as properties.

    • columns

      Type:
      string
      Default:
      null

      A list of hierarchy names separated by comma (,). These will be the hierarchies in the columns of the data source.

    • dataSource

      Type:
      object
      Default:
      null

      Optional="true" Specifies any valid data source accepted by $.ig.DataSource, or an instance of an $.ig.DataSource itself.

    • dataSourceType

      Type:
      string
      Default:
      null

      Optional="true" Explicitly set data source type (such as "json"). Please refer to the documentation of $.ig.DataSource and its type property.

    • dataSourceUrl

      Type:
      string
      Default:
      null

      Optional="true" Specifies a remote URL accepted by $.ig.DataSource in order to request data from it.

    • filters

      Type:
      string
      Default:
      null

      A list of hierarchy names separated by comma (,). These will be hierarchies in the filters of the data source.

    • measures

      Type:
      string
      Default:
      null

      A list of measure names separated by comma (,). These will be the measures of the data source.

    • metadata

      Type:
      object
      Default:
      {}

      Optional="false" An object containing processing instructions for the $.ig.DataSource data.

      • cube

        Type:
        object
        Default:
        {}

        Optional="false" Metadata used for the creation of the cube.

        • caption

          Type:
          string
          Default:
          null

          A caption for the cube.

        • dimensions

          Type:
          array
          Default:
          []
          Elements Type:
          object

          An array of dimension metadata objects.

          • caption

            Type:
            string
            Default:
            null

            A caption for the dimension.

          • hierarchies

            Type:
            array
            Default:
            []
            Elements Type:
            object

            An array of hierarchy metadata objects.

            • caption

              Type:
              string
              Default:
              null

              A caption for the hierarchy.

            • displayFolder

              Type:
              string
              Default:
              null

              The path to be used when displaying the hierarchy in the user interface.
              Nested folders are indicated by a backslash (\).
              The folder hierarchy will appear under parent dimension node.

            • levels

              Type:
              array
              Default:
              []
              Elements Type:
              object

              An array of level metadata objects.

              • caption

                Type:
                string
                Default:
                null

                A caption for the level.

              • memberProvider

                Type:
                function
                Default:
                null

                A function called for each item of the data source array when level members are created.
                Based on the item parameter the function should return a value that will form the $.ig.Member’s name and caption.

              • name

                Type:
                string
                Default:
                null

                Optional="false" A name for the level.
                The unique name of the level is formed using the following pattern:
                {<hierarchy.uniqueName>}.[<levelMetadata.name>].

            • name

              Type:
              string
              Default:
              null

              Optional="false" A name for the hierarchy.
              The unique name of the hierarchy is formed using the following pattern:
              [<parentDimension.name>].[<hierarchyMetadata.name>].

          • name

            Type:
            string
            Default:
            null

            Optional="false" A unique name for the dimension.

        • measuresDimension

          Type:
          object
          Default:
          {}

          An object providing information about the measures' root node.

          • caption

            Type:
            string
            Default:
            null

            A caption for the measures dimension.
            The default value is "Measures".

          • measures

            Type:
            array
            Default:
            []
            Elements Type:
            object

            An array of measure metadata objects.

            • aggregator

              Type:
              function
              Default:
              null

              Optional="false" An aggregator function called when each cell is evaluated.
              Returns a value for the cell. If the returned value is null, no cell will be created in for the data source result.

            • caption

              Type:
              string
              Default:
              null

              A caption for the measure.

            • displayFolder

              Type:
              string
              Default:
              null

              The path used when displaying the measure in the user interface. Nested folders are indicated by a backslash (\).

            • name

              Type:
              string
              Default:
              null

              Optional="false" A unique name for the measure.

          • name

            Type:
            string
            Default:
            null

            A unique name for the measures dimension.
            The default value is "Measures". This name is used to create the names of dimensions using the following pattern:
            [<measuresDimensionMetadata.name>].[<measureMetadata.name>].

        • name

          Type:
          string
          Default:
          null

          Optional="false" A unique name for the cube.

    • responseDataKey

      Type:
      string
      Default:
      null

      Optional="true" Specifies the name of the property in which data records are held if the response is wrapped.

    • responseDataType

      Type:
      string
      Default:
      null

      Optional="true" Explicitly set data source type (such as "json"). Please refer to the documentation of $.ig.DataSource and its type property.

    • rows

      Type:
      string
      Default:
      null

      A list of hierarchy names separated by comma (,). These will be the hierarchies in the rows of the data source.

The current widget has no events.

  • addColumnItem

    .addColumnItem( columnItem:object );

    Adds a hierarchy to the columns of the pivot grid.

    • columnItem
    • Type:object
    • An object of type $.ig.Hierarchy which is the hierarchy to add in the pivot grid columns.

  • addFilterItem

    .addFilterItem( filterItem:object );

    Adds a hierarchy to the filter axis of the pivot grid.

    • filterItem
    • Type:object
    • An object of type $.ig.Hierarchy which is the hierarchy to add.

  • addMeasureItem

    .addMeasureItem( measureItem:object );

    Adds a measure to the measures of the pivot grid.

    • measureItem
    • Type:object
    • An object of type $.ig.Measure which is the measure to add.

  • addRowItem

    .addRowItem( rowItem:object );

    Adds a hierarchy to the rows of the pivot grid.

    • rowItem
    • Type:object
    • An object of type $.ig.Hierarchy which is the hierarchy to add in the pivot grid rows.

  • clearPendingChanges

    .clearPendingChanges( );

    Clears all pending changes since last time the update() method is called.

  • collapseTupleMember

    .collapseTupleMember( axisName:string, tupleIndex:number, memberIndex:number );

    Sets a tuple member to be collapsed next time the update() method is called.
    Calling this method on an already collapsed member does nothing.

    • axisName
    • Type:string
    • The name of the axis for the tuple.
    • tupleIndex
    • Type:number
    • The index of the tuple in the axis.
    • memberIndex
    • Type:number
    • The index of the member in the tuple.

  • columnAxis

    .columnAxis( );
    Return Type:
    array
    Return Type Description:
    An array of objects of type $.ig.Hierarchy or $.ig.MeasureList.

    Returns the items in the column axis.

  • cube

    .cube( );
    Return Type:
    object
    Return Type Description:
    An object of type $.ig.Cube which is the currect cube.

    Retrieves the current cube in the data source.

  • cubes

    .cubes( );
    Return Type:
    array
    Return Type Description:
    A array of $.ig.Cube objects.

    Retrieves the currently loaded cubes in the data source.

  • expandTupleMember

    .expandTupleMember( axisName:string, tupleIndex:number, memberIndex:number );

    Sets a tuple member to be expanded next time the update() method is called.
    Calling this method on an already expanded member does nothing.

    • axisName
    • Type:string
    • The name of the axis for the tuple.
    • tupleIndex
    • Type:number
    • The index of the tuple in the axis.
    • memberIndex
    • Type:number
    • The index of the member in the tuple.

  • filters

    .filters( );
    Return Type:
    array
    Return Type Description:
    An array of objects of type $.ig.Hierarchy.

    Returns the items in the filter axis.

  • getCoreElement

    .getCoreElement( predicate:function, elementType:object );
    Return Type:
    object
    Return Type Description:
    A $.ig.ICoreOlapElement of specified type or null.

    Gets the first element of the specified elementType which matches the specified predicate or null if there is no such element found.

    • predicate
    • Type:function
    • A predicate callback invoked against each core element of the specified type. It has to return true when the element has matched the serach criteria, otherwise - false.
    • elementType
    • Type:object
    • An object specified by $.ig.ICoreOlapElement.prototype.$type property. Valid types which prototype can be examined are: $.ig.Dimension, $.ig.Hierarchy, $.ig.Level, $.ig.Measure and $.ig.MeasureList.

  • getCoreElements

    .getCoreElements( predicate:function, elementType:object );
    Return Type:
    object
    Return Type Description:
    An array of $.ig.ICoreOlapElement objects of specified type or empty array.

    Gets an array with elements of the specified elementType which match the specified predicate or empty array if there is no such element found.

    • predicate
    • Type:function
    • A predicate callback invoked against each core element of the specified type. It has to return true when the element has matched the serach criteria, otherwise - false.
    • elementType
    • Type:object
    • An object specified by $.ig.ICoreOlapElement.prototype.$type property. Valid types which prototype can be examined are: $.ig.Dimension, $.ig.Hierarchy, $.ig.Level, $.ig.Measure and $.ig.MeasureList.

  • getDimension

    .getDimension( dimensionUniqueName:string );
    Return Type:
    object
    Return Type Description:
    A $.ig.Dimension object or null.

    Returns $.ig.Dimension object for the specified unique name.

    • dimensionUniqueName
    • Type:string
    • The unique name of the searched dimension object.

  • getFilterMemberNames

    .getFilterMemberNames( hierarchyUniqueName:string );
    Return Type:
    array
    Return Type Description:
    An array of string objects.

    Returns an array of strings with the unique names of selected for given hierarchy filter members.

    • hierarchyUniqueName
    • Type:string
    • The unique name of the hierarchy whose active filter members are returned.

  • getHierarchy

    .getHierarchy( hierarchyUniqueName:string );
    Return Type:
    object
    Return Type Description:
    A $.ig.Hierarchy object or null.

    Returns $.ig.Hierarchy object for the specified unique name.

    • hierarchyUniqueName
    • Type:string
    • The unique name of the searched hierarchy object.

  • getLevel

    .getLevel( levelUniqueName:string );
    Return Type:
    object
    Return Type Description:
    A $.ig.Level object or null.

    Returns $.ig.Level object for the specified unique name.

    • levelUniqueName
    • Type:string
    • The unique name of the searched level object.

  • getMeasure

    .getMeasure( measureUniqueName:string );
    Return Type:
    object
    Return Type Description:
    A $.ig.Measure object or null.

    Returns $.ig.Measure object for the specified unique name.

    • measureUniqueName
    • Type:string
    • The unique name of the searched measure object.

  • getMeasureList

    .getMeasureList( );
    Return Type:
    object
    Return Type Description:
    A $.ig.MeasureList object or null.

    Returns $.ig.MeasureList object available when operates with more than one $.ig.Measure object.

  • initialize

    .initialize( );

    Initializes the data source and returns a promise that will be resolved once the data source is initialized.
    The promise's result will be the metadata tree for the catalog/cube/measureGroup specified in the settings or null if the settings do not provide a valid cube initialization data.
    The data source is not functional until it has been initialized and all other methods other than initialize() will throw an error if isInitialized() returns false.

  • isInitialized

    .isInitialized( );
    Return Type:
    bool
    Return Type Description:
    True if the data source has been initialized, otherwise false.

    Retrieves the initialization state of the data source.

  • isModified

    .isModified( );
    Return Type:
    bool
    Return Type Description:
    True if the data source has been modified since last time update() methos is called, otherwise false.

    Indicates whether the data source is modified.

  • isUpdating

    .isUpdating( );
    Return Type:
    bool
    Return Type Description:
    True if the update() method execution is in progress, otherwise false.

    Indicates whether the update() method execution is in progress.

  • measures

    .measures( );
    Return Type:
    array
    Return Type Description:
    An array of objects of type $.ig.Measure.

    Returns the items in the measures axis.

  • metadataTree

    .metadataTree( );
    Return Type:
    object
    Return Type Description:
    An object of type $.ig.OlapMetadataTreeItem which is the root node of the metadata tree.

    Returns the fully loaded metadata tree.

  • removeColumnItem

    .removeColumnItem( columnItem:object );

    Removes a hierarchy or the measure list from the columns of the pivot grid.

    • columnItem
    • Type:object
    • An object of type $.ig.Hierarchy or $.ig.MeasureList which is the hierarchy to remove or the measure list if there are more than one measures added and the measure list location is set to "columns".

  • removeFilterItem

    .removeFilterItem( filterItem:object );

    Removes a hierarchy from the filter axis of the pivot grid.

    • filterItem
    • Type:object
    • An object of type $.ig.Hierarchy which is the hierarchy to remove.

  • removeMeasureItem

    .removeMeasureItem( measureItem:object );

    Removes a measure from the measures of the pivot grid.

    • measureItem
    • Type:object
    • An object of type $.ig.Measure which is the measure to remove.

  • removeRowItem

    .removeRowItem( rowItem:object );

    Removes a hierarchy or the measure list from the rows of the pivot grid.

    • rowItem
    • Type:object
    • An object of type $.ig.Hierarchy or $.ig.MeasureList which is the hierarchy to remove or the measure list if there are more than one measures added and the measure list location is set to "rows".

  • result

    .result( );
    Return Type:
    object
    Return Type Description:
    An object of type $.ig.OlapResult which represents the result returned by XMLA service.

    Returns the result from the last update or null if the last update was unsuccessful.

  • rowAxis

    .rowAxis( );
    Return Type:
    array
    Return Type Description:
    An array of objects of type $.ig.Hierarchy or $.ig.MeasureList.

    Returns the items in the row axis.

  • setCube

    .setCube( cubeName:string );

    Sets the current cube for the data source and updates the cube(), measureGroup() and metadataTree() properties.

    • cubeName
    • Type:string
    • The name of the cube.

  • setMeasureListIndex

    .setMeasureListIndex( index:number );

    Sets the index at which the measure list will be positioned in the rows/columns it resides.

    • index
    • Type:number
    • The index where measure list to appear.

  • setMeasureListLocation

    .setMeasureListLocation( location:object );

    Sets the location of the measure list.

    • location
    • Type:object
    • Accepted values are 'rows' and 'columns'.

  • update

    .update( );

    Performs an update with the list of pending changes and updates the data source result.

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